UNDO is delivering Enhanced Rock Weathering (ERW) projects in the UK, USA, and Australia, and is made possible through collaboration with two key partners. Firstly, with local quarries, where crushed basalt is sourced as a by-product. And secondly, with agricultural partners, where the crushed basalt is spread on arable land and not only removes atmospheric CO₂ but also delivers a range of co-benefits associated with soil improvement.